Home / 115,343.39-159,074.48-75,042.45

Finding the Fourth Proportional to 115,343.39, 159,074.48 and 75,042.45

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Solution

The fourth proportional to 115,343.39, 159,074.48 and 75,042.45 is: 103,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,343.39 : 159,074.48 = 75,042.45 : x
  2. Step 2: Convert to fraction form
    115,343.39/159,074.48 = 75,042.45/x
  3. Step 3: Cross multiply
    115,343.39x = 159,074.48 × 75,042.45
  4. Step 4: Simplify right side
    115,343.39x = 11,937,338,899.28
  5. Step 5: Solve for x
    x = 11,937,338,899.28/115,343.39
  6. Step 6: Final answer
    x = 103,493.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.